\usemodule[visual]

\setuplayout[width=fit,height=fit,backspace=10mm,cutspace=10mm,topspace=10mm,margin=10mm,header=10mm,footer=10mm]
\setuppagenumbering[location={header,right},style=\bfb]


\starttext


\defineparagraphs[TwoCol][n=2]
\setupparagraphs[TwoCol][rule=on, top=\blank[10pt]]
\setupparagraphs[TwoCol][1][width=.66\textwidth]


\fakewords{100}{130}\par

\startTwoCol
\fakewords{70}{90}\par
\TwoCol
\fakewords{50}{70}\par
\stopTwoCol

\fakewords{100}{130}\par

\stoptext